The Insulation Sleeving,electrical,s, cataloged under National Stock Number 5970-01-049-7978, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Te Connectivity Corporation Dba Raychem Product Division. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5970-01-049-7978 |
| Primary Part Number | 403A123-4/42-0 |
| Item Name | Insulation Sleeving,electrical,s |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Te Connectivity Corporation Dba Raychem Product Division |
| Status | ACTIVE |
| Third Branch Inside Diameter | 0.180 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Third Branch Inside Diameter | 0.500 INCHES MINIMUM AS SUPPLIED IN |
| Temp Rating | -55.0 CELSIUS AND 135.0 CELSIUS DEGC |
| Second Branch Inside Diameter | 0.180 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Second Branch Inside Diameter | 0.500 INCHES MINIMUM AS SUPPLIED IN |
| Flexibility | FLEXIBLE |
| Material Document and Classification | RT-1304,RAYCHEM CORP MFR REF SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| Main Body Inside Diameter | 1.200 INCHES MINIMUM AS SUPPLIED IN |
| Main Body Inside Diameter | 0.690 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| Main Body Overall Length | 3.500 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Color | BLACK |
| Environmental Protection | CORROSION RESISTANT AND FLAME RESISTANT AND SOLVENT RESISTANT |
| Minimum Tensile Strength | 1000 POUNDS PER SQUARE INCH LBS |
| Material | PLASTIC POLYOLEFIN LOCATION NOT OTHERWISE SPECIFIED |
| First Branch Inside Diameter | 0.180 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN |
| First Branch Inside Diameter | 0.500 INCHES MINIMUM AS SUPPLIED IN |
| Main Body Wall Thickness | 0.090 INCHES NOMINAL AFTER UNRESTRICTED RECOVERY IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 403A123-4/42-0 PRIMARY | Te Connectivity Corporation Dba Raychem Product Division (USA) |
| Reference | Meaning |
|---|---|
| MIL-I-81765/1 | 5/9 Secondary reference U.S. Government activity |
| MES3-2 | 5/9 Secondary reference Te Connectivity Corporation Dba Raychem Product Division |
| 403A123-4-42 | 5/9 Secondary reference Te Connectivity Corporation Dba Raychem Product Division |
NSN 5970-01-049-7978 is a Insulation Sleeving,electrical,s, manufactured by Te Connectivity Corporation Dba Raychem Product Division, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-01-049-7978 has 1 manufacturer part number on file: 403A123-4/42-0 (Te Connectivity Corporation Dba Raychem Product Division).
3 possible matches (shared part number, not a government interchangeability claim): 5970-01-049-8485, 5970-01-051-2832, 5970-01-230-1909. Verify interchangeability with system specifications before substitution.
Key specifications for 403A123-4/42-0: Third Branch Inside Diameter: 0.180 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN; Third Branch Inside Diameter: 0.500 INCHES MINIMUM AS SUPPLIED IN; Temp Rating: -55.0 CELSIUS AND 135.0 CELSIUS DEGC; Second Branch Inside Diameter: 0.180 INCHES MAXIMUM AFTER UNRESTRICTED RECOVERY IN. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.